Patent US2828453A successfully refreshed from Google Patents.
US2828453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selenium rectifiers
Assignee: Siemens Mobility Ltd
•
Filing: 1956-06-07
•
Granted: 1958-03-25
•
Expires: 1976-06-07
Abstract
No abstract record available.
Inventors
- 👤 French Eric Lionel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:36
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/043; H10D48/046; H10D48/045
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
35 words
A SELENIUM CELL COMPRISING A BASE PLATE, A SELENIUM LAYER ON SAID BASE PLATE, A NON-GENETIC BARRIER LAYER OF ETHOXYLENE RESIN AND A LINEAR POLYHYDROXY COMPOUND, AND A COUNTERELECTRODE LAYER ON SAID NON-GENETIC BARRIER LAYER.
References Cited (Backward Citations)
US2121603A
Cited
US2193598A
Cited
US2386750A
Cited
US2481739A
Cited
US2660697A
Cited
US2660698A
Cited
US2783419A
Cited
US2794943A
Cited
US2802974A
Cited
US2802973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |